5.Findings
There was unanimity for susceptibility in eight of ten cognitive biases. Only a minority of project managers recognized susceptibility to pseudocertainty effect, which can be explained by the urgency inherent in IT project where there is a considerable focus on the development of what is most important, letting events that are unlikely to happen in background. Regarding to certainty effect, project managers did not present evidences on being susceptible to this bias since they did not refer to situations that could describe this systematic error in software projects.